摘要
通过对网格圈负压式集聚纺集聚须条进行几何建模、力学分析和运动学分析,建立了集聚须条的张力模型.该模型可以用来研究集聚须条张力分布,以及分析影响因素.通过求解张力模型的解析解,可知须条张力在集聚区内沿前进方向呈线性增长.通过对线密度为15.3tex的纯棉集聚纱进行模拟计算可知,须条与网格圈的摩擦因数、集聚斜槽倾角、集聚负压、集聚须条半径以及集聚管形状对须条张力的影响较为明显,并且在一定条件下得到的须条张力值在0.03~0.12cN之间.研究结果为集聚纺集聚须条的张力分析提供了方法和借鉴,并为集聚区须条单纤维的运动轨迹分析提供了理论依据.
The tension model of fiber bundle in the condensing zone is established by geometric modeling, mechanical analysis and kinematics analysis of the pneumatic compact spinning with lattice apron, which could be used to study the distribution of tension and analyze influence factors. It was shown that along the direction of forward motion, the tension of fiber bundle in the condensing zone demonstrated a linear increasing tendency based on the analytical solution of this tension model. Through the simulation of pure cotton compact yarn of 15.3 tex, it was found that there was a significant influence of friction factor between compact fiber bundle and the lattice apron, suction slot inclined ~ngle, the negative pressure, the compact fiber bundle radius and the shape of suction tube on the fiber bundle tension. The obtained tension was 0.03 to 0.12 cN. The results provide an approach and instances for the analysis of compact yarn tension in the condensing zone of compact spinning, and the theoretical foundation for the analysis of motion track of single fiber in the condensing zone.
作者
傅婷
陈南梁
FU Ting CHEN Nanliang(College of Textiles, Donghua University, Shanghai 201620, China)
出处
《东华大学学报（自然科学版）》
CSCD
北大核心
2017年第3期346-351,共6页
Journal of Donghua University(Natural Science)
关键词
集聚纺
网格圈负压式
张力模型
解析解
compact spinning
lattice apron with negative pressure
tension model
analytical solution
